Sound-magnifier for telegraph instruments.



j 110-. 834,520. ISATENTED OCT. 30,1906. r P. 0. HANSON.

SOUND MAGNIPIER FOR TELEGRAPH INSTRUMENTS.

' APPLIOATIOI rILnp 11:13.20. 100a.

1 How mu' o UNITED, STATES PATENT errron.

FREDERICK o.' HANSON, or VICTORIA, KANSAS, ASSIGNOR or our-HALF i'roWILLIAM .SUHRENKLER, OF WALKER, KANSAS.

'HSOUND-MAGNIFIER FORTELEGRAPH ms'rnumsurs.

Teal/Z whom/ it may concern:

. SON, a citizen of the United States, residing at Victoria, in thecounty of Ellis and State of -Kansas, have invented certain new anduseful Improvements in Sound-Magnifiers for Telegraphic Instruments; andIdo declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to-which itap ertains to make and use the same.

' yiinvention-is a sound-magnifier for tele-' graphic instruments bymeans of which I am enabled to dis ense with'the' ,use of sounders andlocal ployed on telegraxph-lines and to amplify the "fier embodying; myinvention.

atteries ordinarily emelevation of the same.

The sound-box 1 is cylindrical in form and at one'fside 3 has atubularcylindrical ex ,tension 2 of reduced diameter, which communicatestherewith. "The opposite side 4 of the sound-box has a1! opemn 5 A dia-6, of mica or other suita le material,

, is he din the soundrbox'by annular shoulders 7, pac 8', of rubberorother suitable ma- 1 'terial, being interposed between said shouldersand said 'diaghra The sound-box is'su ported by a standard 9, which isse-I a cure to the base of the rela instrument by 4.0

{standard is shown as Said rovided with a. vertically-adjustable mem er11. In connection with the sound-box I-proascrewlO or other suit'ab edevice.

.- videaframe 12. The same comprises a pair (of inverted-U 'shapedmembers 13 14, the inher arms of which are connected together at theirlowerends, as at 15, said members being otherwise unconnected;-ThQOutQI' arm of the member .13 has a clamping screw 1-6 to clampsaid,member. on the standard of the relay instrument, and the outer armof the member 14 has an adjusting-screw17. The

armature-lever of the rela instrument open- Specification of LettersPatent. Application filed February 26. 1906- Serial No. 303,089

; ters Patent, is+ i ates between thepoint o said screw anda PatentedOct. 30, 1906.

boss 18 on the inner arm of saidmember- 14. "Be it known that I,FREDERIOKO. HAN-- Saidmember has on its upper side an upwardly extendingand upwardly tapering point 19, which enters the sound-box through anopening in the lower side thereof and terminates at a point opposite thecenter of the diaphragm. A. wire 20-, of silver or other suitablematerial, connects the center of the diaphragm and the inner end of thepoint. r

An amplifying-horn 21 hasits inner end provided with a sleeve 22 to'sliover and fit on the tubular extension of t e so'und-box to'pivotally'attach the'horn thereto, so that thehorn tion.

When the armature instrument is in operation, the strokes of itsarmature-lever delivered upon the boss 18 and the point of theadjusting-screw 17; set up vibrations in the frame 12 and inthe point19,. which are communicated'by the action of the wire 20 to thediaphragm, causing the same to vibrate and in connection with the casingof the sound-box and the born to gr produce and greatly amplify thesounds produced by the relay-instrument, with the result that the relayinstrument may be used as a sounder and enable the ordinary sounder andthe local battery to be entirely dispensed with;

.From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily'understo'od without requiring-a more extendedexplanation. L

' Variousbhanges in the form, proportion,

.. and the minor details of construction may 'be resorted to withoutdeparting from the principle or sacrificing any of the advan' tages ofthe invention as e pended claims.

Having, thus described my invention, what .Iclaim as new, and desire tosecure by Let-j 1. A sound-magnifier instruments having an armaturelever, a fixed frame to receive the blows of the armature-lever, apointextending fromsaid fixed frame, ,a sound box, a diaphragm in thesound-box, and a connection between the diaphragm and the point. a 2. Asound -magnifier for relay instru ments, having an-armature-lever, aframe to receive the blows of the relay armature-lever,-

for telegraphic relay I may be turned inany desired direcfined in theaptubular extension, a diaphragm in the soundbox and to which vibrationsare eonnnunir5 eated from the point, and a horn having a sleeve fittedon the tubular extension of the sound-box, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubseribing Wit- 2o nesses FREDERICK O. HANSON.

Witnesses F. G. BRUNEY, W. HUBBs.

